Stress-free folding mechanism

Abstract

To provide a stress-free folding mechanism.SOLUTION: A folding mechanism includes a base module and a folding module. The folding module is rotatably coupled to the base module to realize a folding operation of a flexible material, and is slidably coupled to the flexible material.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a stress-free folding mechanism that minimizes stress acting on a flexible material being folded or prevents stress from acting on the flexible material being folded when conducting a folding durability test on the flexible material. [Background technology]

[0002] In general, conventional display panels used for displays such as televisions, computer monitors, and various portable electronic devices use inflexible glass substrates, resulting in a flat, monotonous structure and limited application.

[0003] With the development of science and technology, flexible display devices that can be bent using flexible materials such as plastic instead of inflexible glass substrates have been developed and produced recently. For example, flexible display panel technologies that can be folded or rolled up like a scroll have been developed.

[0004] As such, as products in which flexible displays are folded are released, there is a need for a technology that minimizes stress acting on the folded flexible display or prevents stress from acting on the folded flexible display when conducting a folding durability test on the flexible display. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Korean Patent No. 10-2255147 (Announced on May 24, 2021, Title of invention: 360-degree bidirectional folding durability evaluation device for flexible materials) Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made to solve the above-mentioned problems, and its object is to provide a stress-free folding mechanism that minimizes stress acting on a flexible material being folded or prevents stress from acting on the flexible material being folded when conducting a folding durability test on the flexible material. [Means for solving the problem]

[0007] A folding mechanism according to a preferred embodiment of the disclosed invention includes a base module and a folding module rotatably coupled to the base module to achieve a folding action of the flexible material, and to which the flexible material is coupled.

[0008] This allows the folding action of the flexible material to be clearly realized.

[0009] Here, the folding module includes a folding body rotatably connected to the base module, a first interlocking slider slidably connected to the folding body via a first interlocking member, and a second interlocking slider slidably connected to the first interlocking slider via a second interlocking member.

[0010] This allows the double sliding mechanism to operate when folding the flexible material, minimizing stress on the flexible material.

[0011] Here, the first interlocking slider includes an inclined panel that is disposed at an angle relative to the folding body and slidably connected to the second interlocking slider via the second interlocking member, and a horizontal panel that extends from the inclined panel, is disposed parallel to the folding body, and is slidably connected to the folding body via the first interlocking member, and the second interlocking slider is provided with an inclined support portion that is parallel to the inclined panel.

[0012] As a result, when the flexible material is folded, the horizontal sliding method and the inclined sliding method are performed in parallel, so that the error between the movement trajectory of the flexible material and the movement trajectory of the second interlocking slider can be corrected, and stress on the flexible material can be prevented.

[0013] The folding mechanism according to a preferred embodiment of the disclosed invention further includes a jig module coupled to the folding module while being coupled to the base module so that the flexible material can be attached thereto.

[0014] This allows the flexible material to be attached smoothly and the folding action of the flexible material to be clearly realized.

[0015] The folding mechanism according to a preferred embodiment of the disclosed invention further includes a jig attachment / detachment module for detachably coupling the jig module to the base module.

[0016] This allows for a variety of fixture modules to be interchanged depending on the type of flexible material or type of test.

[0017] Here, the jig attachable / detachable module includes a base attachable / detachable member fixedly coupled to the base module, and a jig attachable / detachable member protruding from the jig module and detachably coupled to the base attachable / detachable member.

[0018] This allows the jig module to be easily attached to and detached from the base module.

[0019] Here, the base attachment / detachment member includes a base support block coupled and fixed to the base module, and a base attachment / detachment block coupled and fixed to the base support block, the base attachment / detachment block is provided with a locking space, a main passage hole is formed through a middle portion of the base attachment / detachment block to connect the locking space with the outside of the base attachment / detachment block, and a locking passage hole is formed recessed at an edge of the main passage hole to connect the locking space with the outside of the base attachment / detachment block, and the jig attachment / detachment member includes a jig support block protruding from the jig module and a base attachment / detachment block coupled and fixed to the jig support block. The jig attachment / detachment block includes a jig attachment / detachment block rotatably coupled to the jig support block so as to be detachably coupled thereto, the jig attachment / detachment block including a detachable base fixedly coupled to the jig support block in correspondence with the base attachment / detachment block, a main shaft rotatably coupled to the detachable base and the jig support block so as to be able to pass through the main passing hole, a locking shaft protruding from the main shaft so as to be able to pass through the locking passing hole, and a detachment lever rotatably coupled to the detachable base and rotating the main shaft so that the locking shaft can be locked to the base attachment / detachment block in the locking loose space.

[0020] As a result, by rotating the detachable lever in the forward direction, the locking shaft can be stably maintained engaged with the base detachable block, and by rotating the detachable lever in the reverse direction to return it to its original position, the jig detachable member can be easily separated from the base detachable member.

[0021] Here, a base support protrusion is protruded from either the base support block or the jig support block, and a protrusion fitting portion that fits into the base support protrusion is recessed or penetrated into the other of the base support block and the jig support block.

[0022] This makes it possible to clearly identify the fixed position of the jig attachable / detachable member on the base attachable / detachable member.

[0023] Here, the jig module includes a fixing member that is connected to the base module so as to support one side of the flexible material, a folding member that is positioned at a distance from the fixing member and connected to the folding module so as to support the other side of the flexible material, and a pivotable support member that connects adjacent ends of the fixing member and the folding member.

[0024] This allows the jig module to be stably connected to the base module and the folding module, and the folding operation of the flexible material can be clearly achieved in accordance with the operation of the folding module, thereby suppressing or preventing stress from acting on the flexible material.

[0025] Here, the fixed member includes a fixed base and a slide base slidably coupled to the fixed base via a base interlocking member.

[0026] This allows various flexible materials to be joined to one jig module by sliding the slide base on the fixed base according to the length of the flexible material.

[0027] Here, the fixing member may further include a position adjusting member for fixing the slide base to the fixed base at a fixed position.

[0028] This allows the slide base to be easily positioned on the fixed base.

[0029] Here, the position adjustment member includes an adjustment guide provided on the fixed base adjacent to the side end of the slide base and parallel to the slide base, an adjustment slider detachably coupled to the adjustment guide depending on the position of the slide base, and an adjustment coupling member detachably coupling the adjustment slider to the side end of the slide base.

[0030] This allows the connection between the fixed base and the slide base to be clearly indicated depending on the slide position of the slide base. Furthermore, the provision of a positioning portion allows the connection position of the adjustment slider to be clearly indicated. Furthermore, the provision of a position confirmation member allows the position to which the slide base has slid on the fixed base to be easily identified visually.

[0031] Here, the rotatable support member includes a first axis that forms the center of rotation of the rotatable support member based on the fixed member, and a second axis that is positioned away from the first axis and forms the center of rotation of the folding member based on the rotatable support member, and when the folding member is folded based on the fixed member, the rotatable support member rotates based on the fixed member in coordination with the rotation of the folding member based on the rotatable support member.

[0032] This facilitates the coordinated operation of the fixed member, folding member, and rotatable support member, and by having the fixed member, folding member, and rotatable support member rotate in coordination with each other, stress acting on the flexible material can be reduced or prevented.

[0033] Here, the rotatable support member includes a mounting bracket disposed between the fixed member and the folding member, a fixed support member coupled to the fixed member and rotatably coupled to the mounting bracket via the first shaft, and a folding support member coupled to the folding member and rotatably coupled to the mounting bracket via the second shaft, and the fixed support member and the folding support member are gear-coupled to each other.

[0034] This clarifies the coordinated rotation of the mounting bracket, the fixed support member, and the folding support member, and suppresses or prevents stress from acting on the flexible material when the flexible material is folded. [Effects of the Invention]

[0035] According to the present invention, when conducting a folding durability test of a flexible material, it is possible to realize a stress-free folding mechanism that minimizes the stress acting on the flexible material being folded or prevents stress from acting on the flexible material being folded.

[0036] Furthermore, the present invention can clearly realize the folding action of flexible materials.

[0037] Furthermore, when the present invention realizes the folding operation of the flexible material, it operates in a double sliding manner, thereby minimizing the stress generated in the flexible material.

[0038] In addition, in the present invention, when the flexible material is folded, the horizontal sliding method and the inclined sliding method are performed in parallel, so that the error between the movement trajectory of the flexible material and the movement trajectory of the second interlocking slider can be corrected, and stress on the flexible material can be prevented.

[0039] In addition, in the present invention, when the flexible material is folded, the horizontal sliding method and the inclined sliding method are performed in parallel, so that the error between the movement trajectory of the flexible material and the movement trajectory of the second interlocking slider can be corrected, and stress on the flexible material can be prevented.

[0040] Furthermore, the present invention allows the flexible material to be smoothly attached and the folding action of the flexible material to be clearly realized.

[0041] Furthermore, the present invention allows various fixture modules to be replaced depending on the type of flexible material or the type of test.

[0042] Furthermore, the present invention can facilitate the attachment and detachment of the jig module to and from the base module.

[0043] In addition, the present invention allows the locking shaft to be stably maintained engaged with the base detachable block by rotating the detachable lever in the forward direction, and allows the jig detachable member to be easily separated from the base detachable member by rotating the detachable lever in the reverse direction to return it to its original position.

[0044] Furthermore, the present invention can clearly define the fixed position of the jig attachable / detachable member on the base attachable / detachable member.

[0045] In addition, the present invention stably connects the jig module to the base module and the folding module, thereby clearly realizing the folding operation of the flexible material in accordance with the operation of the folding module, and suppressing or preventing stress from acting on the flexible material.

[0046] Furthermore, the present invention allows various types of flexible materials to be coupled to one jig module by sliding the slide base on the fixed base according to the length of the flexible material.

[0047] Furthermore, the present invention allows the slide base to be easily fixed in a fixed position on the fixed base.

[0048] Furthermore, the present invention can clarify the connection between the fixed base and the sliding base according to the sliding position of the sliding base. Furthermore, by providing a positioning portion, the connection position of the adjustment slider can be clarified. Furthermore, by providing a position confirmation member, the position to which the sliding base has slid on the fixed base can be easily identified visually.

[0049] In addition, the present invention facilitates the coordinated operation of the fixed member, folding member, and rotatable support member, and by having the fixed member, folding member, and rotatable support member rotate in coordination with each other, stress acting on the flexible material can be reduced or prevented.

[0050] In addition, the present invention clarifies the coordinated rotation of the mounting bracket, the fixed support member, and the folding support member, thereby suppressing or preventing stress from acting on the flexible material when the flexible material is folded. [Brief explanation of the drawings]

[0051] [Figure 1] FIG. 1 is a perspective view of a folding mechanism according to an embodiment of the present invention. [Figure 2] FIG. 2 is an exploded perspective view of FIG. 1. [Figure 3] FIG. 2 is a perspective view of a base module in a folding mechanism according to an embodiment of the present invention. [Figure 4] 10A and 10B are diagrams illustrating the detachable connection between the base module and the jig module in a folding mechanism according to an embodiment of the present invention. [Figure 5] 1 is a perspective view showing a folding module in a folding mechanism according to one embodiment of the present invention; FIG. [Figure 6] FIG. 6 is an exploded perspective view of FIG. 5. [Figure 7] 1 is a first cross-sectional view illustrating a coupling relationship between a folding body of a folding module and a first interlocking slider in a folding mechanism according to an embodiment of the present invention; FIG. [Figure 8] 10 is a second cross-sectional view illustrating the coupling relationship between the first interlocking slider and the second interlocking slider of the folding module in the folding mechanism according to one embodiment of the present invention. FIG. [Figure 9]1 is a perspective view showing a jig module in a folding mechanism according to an embodiment of the present invention; FIG. [Figure 10] FIG. 10 is an exploded perspective view of FIG. 9. [Figure 11] 1 is a cross-sectional view showing a pivot support member of a jig module in a folding mechanism according to an embodiment of the present invention; [Figure 12] 1 is a perspective view showing a state in which a rotation support member of a jig module is folded 90 degrees in a folding mechanism according to an embodiment of the present invention. FIG. [Figure 13] 1 is a perspective view showing a state in which a rotation support member of a jig module is folded to 0 degrees in a folding mechanism according to an embodiment of the present invention; FIG. [Figure 14] 1 is a perspective view showing a state in which the jig module is folded 90 degrees by the folding module in the folding mechanism according to one embodiment of the present invention. FIG. [Figure 15] 1 is a perspective view showing a state in which the jig module is folded to 0 degrees by the folding module in the folding mechanism according to one embodiment of the present invention; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0052] The above-mentioned objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete, and so that the concept of the present invention will be fully conveyed to those skilled in the art.

[0053] In this specification, when a component is referred to as being on another component, it means that the component may be formed directly on the other component, or a third component may be interposed between them. Furthermore, in the drawings, the thickness of the components may be exaggerated for the purpose of effectively explaining the technical content.

[0054] In this specification, when terms such as "first" and "second" are used to describe components, these components should not be limited by these terms. These terms are merely used to distinguish one component from another. The embodiments described and illustrated herein also include their complementary embodiments.

[0055] Additionally, when a first element (or component) is referred to as operating or executing on a second element (or component), it should be understood that the first element (or component) operates or executes in the environment in which the second element (or component) operates or executes, or operates or executes through direct or indirect interaction with the second element (or component).

[0056] When an element, component, device, or system is said to include a component consisting of a program or software, it should be understood that the element, component, device, or system also includes hardware (e.g., memory, CPU, etc.) or other programs or software (e.g., operating system or drivers necessary to drive the hardware) necessary for the program or software to execute or operate, even if not explicitly stated.

[0057] Furthermore, unless a specific reference is made to the implementation of a certain element (or component), it should be understood that the element (or component) can be implemented in the form of software, hardware, or both software and hardware.

[0058] Furthermore, the terms used in this specification are for the purpose of describing the embodiments and do not limit the present invention. In this specification, the singular form includes the plural form unless otherwise specified in the context. As used in this specification, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components in addition to the components mentioned.

[0059] 1 to 15, a folding mechanism according to an embodiment of the present invention may include a base module 10 and a folding module 20.

[0060] The base module 10 is connected to a system body provided in a folding system that performs a folding test of a flexible material. One side of the flexible material is connected to the base module 10 via a fixing member 40 (described later). The fixing member 40 (described later) is detachably connected to the base module 10 via a jig attachment / detachment module 70 (described later).

[0061] 3, the base module 10 may include a plate-shaped base body 11 and folding support brackets 12 protruding from the base body 11 so that the folding module 20 can be rotatably coupled thereto. A body opening is formed through the base body 11 to facilitate ventilation and heat dissipation due to the operation of the folding mechanism and to minimize the load on the base body 11. A pair of folding support brackets 12 are provided on the base body 11 so as to face each other with a space between them.

[0062] In addition, the base module 10 may further include at least one of a gripping member 13 to be gripped by a user and a base coupling member 14 protruding from the base body 11 for coupling to the system body.

[0063] The folding module 20 is rotatably coupled to the base module 10 to achieve the folding operation of the flexible material. The other side of the flexible material is coupled to the folding module 20 via a folding member 50 of the jig module 30, which will be described later. The folding member 50, which will be described later, is coupled to the folding module 20 and is slidable on the folding module 20 in response to the operation of the folding module.

[0064] As shown in Figures 5 to 8, the folding module 20 can include a folding body 21 rotatably connected to the base module 10, a first interlocking slider 22 slidably connected to the folding body 21 via a first interlocking member 24, and a second interlocking slider 23 slidably connected to the first interlocking slider 22 via a second interlocking member 25.

[0065] The folding body 21 may include a folding base 211 on which the first interlocking slider 22 is stacked, folding brackets 212 connected to both side ends of the folding base 211 in an "L" shape, and a folding shaft 213 connected to the free end of the folding bracket 212 and rotatably connected to the folding support bracket 12 of the base module 10.

[0066] As an example, as shown in the figure, the first interlocking slider 22 may include an inclined panel 221 disposed at an angle relative to the folding body 21 and slidably connected to the second interlocking slider 23 via a second interlocking member 25, and a horizontal panel 222 extending from the inclined panel 221, disposed parallel to the folding body 21, and slidably connected to the folding body 21 via a first interlocking member 24. In this case, as shown in the figure, the second interlocking slider 23 preferably includes an inclined support portion parallel to the inclined panel 221. The inclined support portion, based on the initial state in which the flexible material is flat, is inclined upward from the rotation center of the folding module 20 toward the end of the folding module 20 to achieve the folding operation of the jig module 30. Here, the inclination of the inclined panel 221 or the inclined support portion is not limited.

[0067] The first interlocking member 24 may include a first slider 241 provided on either the folding main body 21 or the horizontal panel 222, and a first guide 242 provided on the other of the folding main body 21 or the horizontal panel 222 so that the first slider 241 is slidably coupled to it. The second interlocking member 25 may include a second slider 251 provided on either the inclined panel 221 or the inclined support portion of the second interlocking slider 23, and a second guide 252 provided on the other of the inclined panel 221 or the inclined support portion of the second interlocking slider 23 so that the second slider 251 is slidably coupled to it.

[0068] Then, according to the folding action of the flexible material, the horizontal panel 222 of the first interlocking slider 22 slides parallel to the folding body 21, and the second interlocking slider 23 slides parallel to the inclined panel 221 of the first interlocking slider 22, so that the first interlocking slider 22 slides parallel to the folding body 21 and the second interlocking slider 23 slides at an angle relative to the folding body 21, thereby making the folding action of the jig module 30 clear.

[0069] Alternatively, the inclined panel 221 may be horizontal and the horizontal panel 222 may be inclined.

[0070] The folding mechanism according to an embodiment of the present invention may further include a jig module 30. The jig module 30 is coupled to the folding module 20 while being coupled to the base module 10 so that the flexible material is attached thereto.

[0071] As shown in Figures 9 and 10, the jig module 30 may include a fixed member 40 that supports one side of the flexible material, a folding member 50 that is positioned spaced apart from the fixed member 40 and supports the other side of the flexible material, and a rotating support member 60 that connects adjacent ends of the fixed member 40 and the folding member 50.

[0072] The fixing member 40 is detachably coupled to the base module 10 via a jig attachment / detachment module 70 (described later), and the folding member 50 is coupled to the folding module 20.

[0073] More specifically, the fixed member 40 may include a fixed base 47 and a slide base 46 slidably coupled to the fixed base 47 via a base interlocking member 48 .

[0074] The fixed base 47 has a through-hole formed therethrough, which facilitates ventilation and heat dissipation according to the operation of the folding mechanism, and minimizes the load of the fixed base 47 .

[0075] The base interlocking member 48 may include a base guide 481 provided on either the fixed base 47 or the slide base 46, and a base slider 482 provided on the other of the fixed base 47 or the slide base 46 so as to be slidably connected to the base guide 481.

[0076] The fixing member 40 may further include a position adjustment member 49 that fixes the slide base 46 to the fixed base 47 in a fixed position.

[0077] The position adjustment member 49 may include an adjustment guide 491 provided on the fixed base 47 adjacent to the side end of the slide base 46 and parallel to the slide base 46, an adjustment slider 493 detachably coupled to the adjustment guide 491 depending on the position of the slide base 46, and an adjustment coupling member 494 that detachably couples the adjustment slider 493 to the side end of the slide base 46.

[0078] Here, two or more positioning portions 492 are arranged spaced apart from each other on the side portion of the adjustment guide 491, so that when the position of the slide base 46 is determined, the adjustment determination portion provided on the adjustment slider 493 is detachably coupled to one of the two or more positioning portions 492, and the adjustment coupling member 494 detachably couples the adjustment slider 493 to the slide base 46.

[0079] In addition, the adjustment guide 491 has a scale displayed thereon, and the position adjustment member 49 further includes a position confirmation member 495 coupled to the side end of the slide base 46, so that the distance that the slide base 46 has slid on the fixed base 47 can be easily confirmed.

[0080] The folding member 50 is plate-shaped and is stacked and coupled to the second interlocking slider 23 of the folding module 20 in parallel.

[0081] The rotatable support member 60 includes a first axis that forms the center of rotation of the rotatable support member 60 relative to the fixed member 40, and a second axis that is disposed apart from the first axis and forms the center of rotation of the folding member 50 relative to the rotatable support member 60. The first axis and the second axis are disposed apart from each other. Thus, when the folding member 50 is folded relative to the fixed member 40, it is preferable that the rotatable support member 60 rotates relative to the fixed member 40 in coordination with the rotation of the folding member 50 relative to the rotatable support member 60.

[0082] 11 to 13, the pivotable support member 60 may include a mounting bracket 61 disposed between the fixed member 40 and the folding member 50, a fixed support member 62 coupled to the fixed member 40 and rotatably coupled to the mounting bracket 61 via a first shaft, and a folding support member 63 coupled to the folding member 50 and rotatably coupled to the mounting bracket 61 via a second shaft. In this case, the fixed support member 62 and the folding support member 63 are preferably gear-coupled to each other.

[0083] Because the mounting bracket 61 has a channel shape with a U-shaped cross section, it can rotate from a 180-degree state in which the fixed support member 62 and the folding support member 63 are aligned in a straight line to a 0-degree state in which the fixed support member 62 and the folding support member 63 are overlapping in parallel, thereby realizing the folding operation of the flexible material. If the mounting bracket 61 is plate-shaped, it can rotate from a 0-degree state in which the folding support member 63 is overlapping in parallel above the fixed support member 62, through a 180-degree state in which the fixed support member 62 and the folding support member 63 are aligned in a straight line, to a 360-degree state in which the folding support member 63 is overlapping in parallel below the fixed support member 62, thereby realizing the folding operation of the flexible material.

[0084] The fixed support member 62 may include a fixed gear portion 621 rotatably coupled to the mounting bracket 61 via a first shaft, and a fixed rod 622 protruding from the fixed gear portion 621. Fixed gear teeth for gear coupling are formed on the outer circumferential surface of the fixed gear portion 621, and the fixed rod 622 is coupled to the fixing member 40.

[0085] The folding support member 63 may include a folding gear unit 631 rotatably coupled to the mounting bracket 61 via a second shaft, and a folding rod 632 protruding from the folding gear unit 631. Folding gear teeth that mesh with the fixed gear teeth are formed on the outer circumferential surface of the folding gear unit 631, and the folding rod 632 is coupled to the folding member 50.

[0086] The folding mechanism according to one embodiment of the present invention may further include a jig attachment / detachment module 70. The jig attachment / detachment module 70 detachably couples the jig module 30 to the base module 10.

[0087] More specifically, the jig attachment / detachment module 70 can include a base attachment / detachment member 71 that is fixedly connected to the base module 10 as shown in FIG. 4, and a jig attachment / detachment member 75 that protrudes from the jig module 30 and is detachably connected to the base attachment / detachment member 71.

[0088] The base attachment / detachment member 71 may include a base support block 72 that is coupled and fixed to the base module 10, and a base attachment / detachment block 74 that is coupled and fixed to the base support block 72. In this case, a base support protrusion 73 may be protruded from either the base support block 72 or the jig support block 76. The base support block 72 may include a base mounting portion to which the base attachment / detachment block 74 and the base support protrusion 73 are coupled.

[0089] The base detachable block 74 is provided with a locking free space 741 in which a main shaft 782 and a locking shaft 783, which will be described later, move freely. A main through hole 742 is formed through the middle part of the base detachable block 74, connecting the locking free space 741 to the outside of the base detachable block 74. A locking through hole 743 can be recessed into the edge of the main through hole 742, connecting the locking free space 741 to the outside of the base detachable block 74.

[0090] The jig attaching / detaching member 75 may include a jig support block 76 protruding from the jig module 30, and a jig attaching / detaching block 78 rotatably coupled to the jig support block 76 so as to be detachably coupled to the base attaching / detaching block 74. In this case, a protrusion fitting portion that fits onto the base support protrusion 73 may be recessed or penetrated into the other of the base support block 72 and the jig support block 76. The jig support block 76 may be provided with a jig mounting portion to which the jig attaching / detaching block 78 and a jig fitting ring 77 having a protrusion fitting portion formed thereon are coupled.

[0091] The jig attachment / detachment block 78 may include a detachable base 781 that is fixedly connected to the jig support block 76 corresponding to the base attachment / detachment block 74; a main shaft 782 that is rotatably connected to the detachable base 781 and the jig support block 76 so as to be able to pass through the main passage hole 742; a locking shaft 783 that protrudes from the main shaft 782 so as to be able to pass through the locking passage hole 743; and a detachable lever 784 that is rotatably connected to the detachable base 781 and rotates the main shaft 782 so that the locking shaft 783 can be locked to the base attachment / detachment block 74 in the locking loose space 741.

[0092] As a result, when the jig detachable module 70 is used, the jig module 30 is stacked and supported on the base module 10 with the main shaft 782 and the locking shaft 783 facing the main passing hole 742 and the locking passing hole 743, respectively, and the base support protrusion 73 facing the protrusion fitting portion of the jig fitting ring 77. Next, when the detachable lever 784 is rotated 90 degrees, the locking shaft 783 is locked to the base detachable block 74 in the locking loose space 741, allowing the fixing member 40 of the jig module 30 to be connected to the base module 10. In addition, the folding member 50 of the jig module 30 can be connected to the second interlocking slider 23 of the folding module 20 in various known ways. As a result, as shown in FIG. 1, the fixing member 40 and the folding member 50 are arranged parallel to each other and can be rotated 180 degrees.

[0093] The other side of the flexible material is supported by the folding member 50 of the jig module 30. One side of the flexible material is coupled to the slide base 46 of the jig module 30. Next, the slide base 46 is slid based on the fixed base 47, and then the slide base 46 is coupled to the fixed base 47 by the position adjustment member 49. Then, one side of the flexible material is supported by the fixed member 40, and the flexible material is arranged flat on the jig module 30.

[0094] As shown in Fig. 1, when the folding axis 213 of the folding module 20 is rotated from the 180-degree position where the fixed member 40 and the folding member 50 are arranged parallel to each other, the folding member 50 passes through a 90-degree position where the folding member 50 is arranged at a 90-degree angle relative to the fixed member 40 as shown in Fig. 14, and then reaches a 0-degree position where the fixed member 40 and the folding member 50 are overlapped in parallel to each other as shown in Fig. 15. At this time, as the folding member 50 rotates relative to the fixed member 40, the first interlocking slider 22 and the second interlocking slider 23 slide relative to each other relative to the folding body 21, preventing stress from being applied to the flexible material.

[0095] According to the above-described stress-free folding mechanism, when conducting a folding test of a flexible material, it is possible to realize a stress-free folding mechanism that minimizes the stress acting on the flexible material being folded or prevents stress from acting on the flexible material being folded.

[0096] In addition, the folding action of the flexible material can be clearly realized.

[0097] In addition, when realizing the folding operation of the flexible material, it operates in a double sliding manner, minimizing the stress generated in the flexible material.

[0098] In addition, when the flexible material is folded, the horizontal slide method and the inclined slide method are performed in parallel, so that the error between the movement trajectory of the flexible material and the movement trajectory of the second interlocking slider 23 can be corrected, and stress on the flexible material can be prevented.

[0099] In addition, when the flexible material is folded, the horizontal slide method and the inclined slide method are performed in parallel, so that the error between the movement trajectory of the flexible material and the movement trajectory of the second interlocking slider 23 can be corrected, and stress on the flexible material can be prevented.

[0100] In addition, the flexible material can be smoothly attached and the folding action of the flexible material can be clearly realized.

[0101] Also, the jig module 30 can be variously replaced depending on the type of flexible material or the type of test.

[0102] Furthermore, the jig module 30 can be easily attached to and detached from the base module 10.

[0103] In addition, by rotating the detachable lever 784 in the forward direction, the locking shaft 783 can be stably maintained engaged with the base detachable block 74, and by rotating the detachable lever 784 in the reverse direction to return it to its original position, the jig detachable member 75 can be easily separated from the base detachable member 71.

[0104] Furthermore, the fixed position of the jig attaching / detaching member 75 on the base attaching / detaching member 71 can be clearly determined.

[0105] In addition, the jig module 30 is stably connected to the base module 10 and the folding module 20, so that the folding operation of the flexible material can be clearly realized in accordance with the operation of the folding module 20, and stress on the flexible material can be suppressed or prevented.

[0106] Furthermore, the fixed member 40, the folding member 50, and the pivot support member 60 rotate in coordination with one another, thereby reducing or preventing stress acting on the flexible material.

[0107] In addition, various types of flexible materials can be combined into one jig module by sliding the slide base 46 on the fixed base 47 according to the length of the flexible material.

[0108] Moreover, the slide base 46 can be easily fixed in a fixed position on the fixed base 47.

[0109] Furthermore, the connection between the fixed base 47 and the slide base 46 can be clarified according to the slide position of the slide base 46. Furthermore, the provision of the positioning portion 492 can clarify the connection position of the adjustment slider 493. Furthermore, the provision of the position confirmation member 495 makes it easy to visually identify the position to which the slide base 46 has slid on the fixed base 47.

[0110] In addition, the present invention facilitates the coordinated operation of the fixed member, folding member, and rotatable support member, and by rotating the fixed member, folding member, and rotatable support member in coordination with each other, stress acting on the flexible material can be reduced or prevented.

[0111] In addition, the coordinated rotation of the mounting bracket 61, the fixed support member 62, and the folding support member 63 is made clear, which can suppress or prevent stress from acting on the flexible material when the flexible material is folded. [Explanation of symbols]

[0112] 10 Bass Module 11 Base body 12 Folding support bracket 13 Gripping member 14 Base connecting member 20 folding modules 21 Folding body 211 Folding Base 212 Folding Bracket 213 Folding Axis 22 First linked slider 221 Inclined Panel 222 Horizontal Panel 23 Second linked slider 24 First interlocking member 241 First Slider 242 First Guide 25 Second interlocking member 251 Second Slider 252 Second Guide 30 Jig Module 40 Fixing member 46 Slide Base 47 Fixed base 48 Base interlocking member 481 Base Guide 482 Base Slider 49 Position adjustment member 491 Adjustment Guide 492 Positioning part 493 Adjustment Slider 494 Adjustable coupling member 495 Position confirmation member 50 Folding member 60 Rotating support member 61 Mounting bracket 62 Fixed support member 621 Fixed gear part 622 Fixed rod 63 Folding support member 631 Folding gear part 632 Folding Rod 70 Jig attachment / detachment module 71 Base detachable member 72 Base support block 73 Base support protrusion 74 Detachable base block 741 Locking free space 742 Main passage hole 743 Locking passage hole 75 Jig attachment / detachment parts 76 Jig support block 77 Jig fitting ring 78 Jig detachable block 781 Detachable Base 782 Main shaft 783 Locking shaft 784 Detachable Lever

Claims

1. The base module and a folding module rotatably coupled to the base module to achieve a folding action of the flexible material, the folding module being coupled to the flexible material; The folding module comprises: a folding body rotatably coupled to the base module; a first interlocking slider slidably coupled to the folding body via a first interlocking member; a second interlocking slider slidably coupled to the first interlocking slider via a second interlocking member.

2. The first interlocking slider includes: an inclined panel disposed inclined relative to the folding body and slidably coupled to the second interlocking slider via the second interlocking member; a horizontal panel extending from the inclined panel and disposed parallel to the folding body, the horizontal panel being slidably coupled to the folding body via the first linking member; The folding mechanism according to claim 1 , wherein the second interlocking slider is provided with an inclined support portion parallel to the inclined panel.

3. The folding mechanism according to claim 1 or 2, further comprising a jig module coupled to the folding module while being coupled to the base module so that the flexible material can be attached thereto.

4. The folding mechanism according to claim 3 , further comprising a jig attachment / detachment module for detachably coupling the jig module to the base module.

5. The jig attachment / detachment module includes: a base detachable member coupled and fixed to the base module; 5. The folding mechanism according to claim 4, further comprising: a jig attaching / detaching member protruding from the jig module and detachably coupled to the base attaching / detaching member.

6. The base detachable member is a base support block fixedly coupled to the base module; a base detachable block coupled and fixed to the base support block, The base detachable block is provided with a loose locking space, and a main through-hole is formed through a middle portion of the base detachable block, connecting the loose locking space with the outside of the base detachable block, and a locking through-hole is formed by recessing an edge of the main through-hole, connecting the loose locking space with the outside of the base detachable block, The jig attaching / detaching member is a jig support block protruding from the jig module; and a jig attachment / detachment block rotatably coupled to the jig support block so as to be detachably coupled to the base attachment / detachment block, The jig attachment / detachment block is a detachable base that is coupled and fixed to the jig support block in correspondence with the detachable base block; a main shaft rotatably coupled to the detachable base and the jig support block so as to be able to pass through the main passage hole; a locking shaft that projects from the main shaft so as to be able to pass through the locking through hole; 6. The folding mechanism according to claim 5, further comprising: a detachable lever rotatably coupled to the detachable base, for rotating the main shaft so that the locking shaft can be locked to the base detachable block in the locking free space.

7. a base support protrusion is provided on either the base support block or the jig support block; The folding mechanism according to claim 6, wherein the other of the base support block and the jig support block has a recessed or pierced protrusion fitting portion fitted to the base support protrusion.

8. The jig module includes: a fixing member coupled to the base module so as to support one side of the flexible material; a folding member disposed at a distance from the fixed member and coupled to the folding module so as to support the other side of the flexible material; The folding mechanism according to claim 3 , further comprising a pivot support member connecting adjacent ends of the fixing member and the folding member.

9. The fixing member is A fixed base and The folding mechanism according to claim 8, further comprising: a slide base slidably coupled to the fixed base via a base linking member.

10. The folding mechanism according to claim 9, wherein the fixing member further includes a position adjusting member for fixing the sliding base to the fixed base in a fixed position.

11. The position adjustment member is an adjustment guide provided on the fixed base adjacent to a side end of the slide base and parallel to the slide base; an adjustment slider that is detachably coupled to the adjustment guide depending on the position of the slide base; 11. The folding mechanism according to claim 10, further comprising: an adjustment coupling member for detachably coupling the adjustment slider to a side end of the slide base.

12. The rotation support member has: a first axis that forms a rotation center of the rotation support member relative to the fixed member; a second axis that is disposed apart from the first axis and forms a rotation center of the folding member relative to the rotary support member; The rotation support member is The folding mechanism according to claim 8, characterized in that when the folding member is folded based on the fixed member, it rotates based on the fixed member in coordination with the rotation of the folding member based on the rotatable support member.

13. The rotation support member is a mounting bracket disposed between the fixed member and the folding member; a fixed support member coupled to the fixed member and rotatably coupled to the mounting bracket via the first axis; a folding support member coupled to the folding member and rotatably coupled to the mounting bracket via the second shaft; The folding mechanism according to claim 12, wherein the fixed support member and the folding support member are gear-coupled to each other.

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